280734 has 16 divisors (see below), whose sum is σ = 570240. Its totient is φ = 92120.

The previous prime is 280729. The next prime is 280751. The reversal of 280734 is 437082.

280734 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97 + ... + 755.

It is an arithmetic number, because the mean of its divisors is an integer number (35640).

2²⁸⁰⁷³⁴ is an apocalyptic number.

280734 is an abundant number, since it is smaller than the sum of its proper divisors (289506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

280734 is a wasteful number, since it uses less digits than its factorization.

280734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 280734 is about 529.8433730830. The cubic root of 280734 is about 65.4784421023.

The spelling of 280734 in words is "two hundred eighty thousand, seven hundred thirty-four".